Synonyms: 10aH-Ambros-11(13)-en-12-oic acid, 6b-hydroxy-4-oxo-, g-lactone (8CI); Azuleno[4,5-b]furan-2,9-dione,decahydro-6,9a-dimethyl-3-methylene-, [3aS-(3aa,6b,6aa,9ab,9ba)]-; Damsin (6CI); (-)-Damsin; Ambrosin, dihydro-; Damsine;Dihydroambrosin; NSC 85249